- Tytuł:
-
Wpływ ogłowienia i przerzedzenia na wzrost grabu (Carpinus betulus L.) w młodniku dębowym (Quercus petraea (Matt.) Liebl.)
Influence of decapitating and thinning on growth of hornbeam (Carpinus betulus L.) in the oak (Quercus petraea (Matt.) Liebl.) thicket - Autorzy:
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Andrzejczyk, T.
Brzeziecki, B.
Szeligowski, H. - Powiązania:
- https://bibliotekanauki.pl/articles/979514.pdf
- Data publikacji:
- 2019
- Wydawca:
- Polskie Towarzystwo Leśne
- Tematy:
-
lesnictwo
hodowla lasu
drzewostany mieszane
drzewostany grabowo-debowe
mlodniki
grab pospolity
Carpinus betulus
zabiegi pielegnacyjne
przerzedzanie
oglawianie
wzrost roslin
przyrost wysokosci
przyrost piersnicy
interspecific competition
pre−commercial thinning
decapitating
mixed stand - Opis:
- The aim of this study was to quantify 4−year growth and increment of 11− to 15−year−old, artificially regenerated hornbeam (Carpinus betulus L.) playing the role of the tending (nursery) species in the oak stand of the same age, after the silvicultural treatments aimed at reducing its competition against the oak. The study included three types of experimental treatments: decapitating of all hornbeam trees (OG), schematic reduction of hornbeam density (R50, removal of every second hornbeam in a row) and control (K, without treatment). The trial stand is located in Rogów (51.827023° N, 19.922315° E) and was established in 2004 on a moderately fertile site. The experiment was carried out in the spring 2013 (9 years after planting). Height and breast height diameter (dbh) of trees were measured every two years. During the study period, the height increment of decapitated trees was significantly larger than in R50 and K variants, while the dbh increment of trees in R50 variant was significantly larger than in K and OG variants. The height increment of hornbeam in R50 and OG variant and the dbh increment in R50 variant were positively correlated with height and diameter of trees before the treatment, while the dbh increment after decapitating was negatively correlated with tree dimensions before treatment. The decapitating treatment reduced the competitive ability of hornbeam more effectively than the schematic thinning removing 50% of hornbeam trees. After 4 years in the first case, oaks were on average 1 m higher than hornbeams, and in the second case, there was an opposite situation. In order to improve the effectiveness of the thinning treatment, a selective cutting should be performed (removal of the largest hornbeams), and in order to slow down the regeneration of hornbeams after decapitating, the treatment should be carried out during the top of the growing season.
- Źródło:
-
Sylwan; 2019, 163, 03; 179-187
0039-7660 - Pojawia się w:
- Sylwan
- Dostawca treści:
- Biblioteka Nauki
Artykuł